Are you curious about the top transformer manufacturers in China and what sets them apart? Let’s dive into the world of China’s leading transformer factories, where innovation and quality are paramount. From JSHP Transformer’s impressive zero failure record to TSTY Electric’s cutting-edge research and development, we’ll explore what makes these companies stand out in the industry. Whether you’re interested in power transmission or industrial applications, this comparison will give you a clear insight into China’s transformer manufacturing giants.
EE Transformer Laminations in China
Product Details: EI transformer laminations are constructed from stacks of thin, electrically insulated sheets of electrical steel, typically grain-oriented. These laminations are stamped into E and I shapes and stacked to form the core. The primary and secondary windings are wound on bobbins placed on spindles, allowing for automation and insulation between the windings and the core. EI transformers are used in various applications, including instrument and small industrial applications, lighting, fuel-fired ignition transformers, small electronics, and more[2][3][4].
Pros:
– Easy and economical to manufacture
– Lower coupling capacitance between the primary and secondary, blocking high freq…
– Better performance in low wattage applications with small stray magnetic fields
– Can mount at multiple points, making them suitable for equipment subject to vibr…
– Reduced eddy currents and enhanced efficiency due to the laminated core structur…
Cons:
– Small imperfections and burrs in the laminations can create an effective air gap…
– Loose laminations can vibrate at the fundamental frequency, producing mechanical…
– May not be ideal for high wattage applications due to size and weight considerat…
Transformer Laminations in China
Product Details: Lammotor specializes in producing various types of transformer laminations, including E-type, EI, UI, and EE laminations. These laminations are made from high-quality materials such as Non-Grain Oriented (NGO) steel, Grain Oriented (GO) steel, Cold Rolled Motor Lamination (CRML) steel, amorphous alloys, and Nickel-Iron or Iron-Cobalt Alloys. The laminations are used in transformers, inverters, reactors, and rectifiers, and are essential for reducing eddy current losses and improving efficiency. The thickness of the laminations typically ranges from 0.2 mm to 0.5 mm, depending on the application. High-speed stamping machines are used for mass production, while laser cutting is preferred for prototyping and
custom designs.
Pros:
– Superior energy efficiency and durability
– High-performance transformer cores with minimal energy loss
– Customizable to meet specific requirements
– Advanced manufacturing capabilities for quick turnaround
– Reduced eddy current losses
– High-quality materials for diverse application needs
Cons:
– Susceptibility to corrosion and brittleness in silicon steel laminations
– Higher energy losses in silicon steel compared to amorphous metal
china transformer core laminations manufacturer – Gaotune
Product Details: Gaotune offers various types of transformer core laminations, including amorphous C-core, Hiperco 50 C-Core, and other specialized cores. The amorphous C-core has a regular shape and good repeatability. These cores are made from thin ribbons of metal that are heated until they become fluid and then cooled rapidly, resulting in a disordered or amorphous structure.
Pros:
– High magnetic permeability, making them ideal for high-precision transformer app…
– Low core loss and high energy efficiency, even in high magnetic field applicatio…
– Eco-friendly manufacturing process.
Cons:
– More expensive than laminated cores due to the complex manufacturing process.
– More susceptible to damage from internal mechanical stresses, requiring special…
– Do not handle high voltages well and are not recommended for high voltage applic…
Transformer Laminations In China
Product Details: Lamnow specializes in customized electrical steel laminations for transformers, including C, EI, and UI types. These laminations are precision-engineered to enhance energy efficiency and are used in industries such as power distribution, renewable energy, rail transportation, home appliances, and manufacturing. The materials used include Non-Grain Oriented (NGO), Grain Oriented (GO), Cold Rolled Motor Lamination (CRML) steel, and Amorphous Metal Alloys. Advanced stamping processes like progressive stamping, large blank compound stamping, and rotary notch stamping are employed. The company also offers transformer core lamination prototype services using techniques like laser cutting and wire cutting.
Pros:
– Optimizes energy transfer and minimizes losses for reliable electrical performan…
– Enhances overall transformer efficiency by reducing core loss
– Suitable for various applications including power distribution, instrumentation,…
– High-volume manufacturing facilities ensure timely and complete delivery
– Precision lamination solutions to improve transformer performance and lower core…
– Minimizes eddy current losses by using laminations with insulating coatings
Cons:
– Laminated cores have a low saturation flux density, limiting their ability to op…
– Eddy currents generated can increase energy losses, leading to lower efficiency…
Transformer Core – Silicon steel core
Product Details: Silicon steel core transformers are constructed using thin laminated sheets of silicon steel, which is a type of electrical steel. This material is chosen for its high permeability, reduced eddy current losses, and enhanced magnetic properties. The cores are typically made from grain-oriented silicon steel, which is cold-rolled and annealed to increase its strength and durability. These transformers are widely used in power distribution, voltage transformation, and various industrial processes due to their cost-effectiveness and versatility in design and dimensions[2][3][4].
Pros:
– High durability and resistance to mechanical stress, making them suitable for ap…
– Cost-effective with a lower initial cost, which is attractive for applications w…
– Flexible in design and dimensions, allowing for a wide range of transformer size…
– Well-suited for applications with frequent on-off cycles or shorter operational…
Cons:
– Higher energy losses in the form of hysteresis and eddy currents, especially in…
– Generate more heat during operation, which can increase cooling requirements.
– Less energy-efficient compared to amorphous core transformers, particularly in s…
Current transformers core laminations – Silicon steel core
Product Details: Silicon steel laminations are made from low-carbon steel with the addition of silicon, typically between 3% to 5%. They are often cold-rolled and grain-oriented (CRGO) or nonoriented. The laminations are usually thin, ranging from 0.014 to 0.025 inches (0.36 to 0.64 mm) in thickness. They are used in applications such as transformers and electric motors due to their improved magnetic properties. The laminations are typically annealed at temperatures between 790 and 845°C (1450 and 1550°F) for stress relief and to enhance their magnetic characteristics.
Pros:
– Reduces eddy current losses and hysteresis losses, improving efficiency in elect…
– Increases the electrical resistance of the component, allowing better magnetic f…
– Resists corrosion and is available in various grades and thicknesses, making it…
– Improves the lifespan of stamping tools and dies.
Cons:
– The presence of silicon makes the steel brittle and harder to stamp, affecting t…
– May require additional processing depending on the type and intended use, adding…
– Does not perform well in long-term shelf storage and can rust in humid environme…
Transformer Laminations in China
Product Details: Transformer laminations are made from silicon steel strips, available in standard and non-standard sizes. Standard sizes range from EI 28 to EI 240, and non-standard sizes from EI 36 to EI 360. The laminations are used in various applications including power transformers, control transformers, and small electronics. Key specifications include thicknesses of 0.30mm-0.50mm, and materials such as CRGO and CRNGO. The laminations are known for low iron loss, high magnetic flux strength, and good insulation properties[1][3][5].
Pros:
– Cost-effective, durable, and able to handle high voltages
– Low noise production compared to other transformer core types
– Better mechanical stability and suitability for high-frequency currents
– Reduced iron losses and flux leakage
– Improved cooling due to greater surface area
Cons:
– Low saturation flux density, limiting operation under high magnetic loads
– Increased energy losses due to eddy currents
– Higher manufacturing and maintenance costs
– Regular upkeep required, especially in extreme environments
– Can be noisier due to cooling fans and other components
EE Transformer Lamination Core In China
Product Details: Transformer lamination cores are made from stacks of thin, electrically insulated sheets of electrical steel, typically ranging from 0.10 to 1.00 millimeters thick. These cores are available in various configurations such as E & I, Step Lap/Miter Core, Distributed Gap Wound Core, and Cut to Length. They are used in applications including power transformers, distribution transformers, electric vehicle charging, and small electronics.
Pros:
– Reduced eddy currents: The insulating layers between laminations act as barriers…
– Enhanced efficiency: By minimizing eddy current losses, laminated cores contribu…
– Cost-effectiveness: Laminated cores are widely used due to their cost-effectiven…
– Minimal space and noise: These cores are lightweight, take up minimal space, and…
Cons:
– Low saturation flux density: Laminated cores have a low saturation flux density,…
– Energy losses: The eddy currents generated increase the transformer’s energy los…
Silicon Steel Lamination Transformer Core Ei Lamination
Product Details: Silicon steel lamination transformer cores are made from grain-oriented electrical steel with a silicon content up to 3.2%. They are cold-rolled and annealed to produce thin, flat sheets. These cores are used in various applications including power transformers, distribution transformers, audio transformers, and more. They come in different forms such as lamination, toroidal, and C-cores. The material has a lamination thickness of around 0.014 inches (0.355 mm) and is known for its low core loss and high magnetic permeability[1][3][4].
Pros:
– Low loss and high efficiency due to excellent magnetic permeability and low hyst…
– High temperature stability, maintaining good magnetic properties and structural…
– Wide range of applications in power transmission and distribution systems, elect…
– Cost-effective and efficient way to create transformer cores, reducing manufactu…
Cons:
– Limited to non-rotating applications due to preferred crystallographic orientati…
– Requires precise manufacturing processes to maintain optimal magnetic properties
– May not be suitable for all types of electrical equipment due to specific magnet…
China EI core lamination,Silicon steel core,Transformer core …
Product Details: The products are Silicon Steel Laminations (EI core laminations) used in various electrical applications such as power transformers, ballast resistors, UPS, chargers, and control transformers. The laminations are made from Silicon Steel Material (CRGO, CRNGO) with thicknesses of 0.30mm, 0.35mm, and 0.5mm. They are available in a range of sizes including EI Mono-phase series (EI28-300) and EI Three-phase series (EI 80-300). The material brands include Wu steel, Bao steel, An steel, Tai steel, and Shou steel. The products have low core loss and good stability. Standard sizes do not require mould charges, but custom moulds can be made according to
customer drawings. The minimum order quantity is 500KG, and delivery time is 14 days per 20 GP container. Payment terms include T/T, L/C, and Cash, with shipping options by air, sea, or combined transportation[2][4][5].
Pros:
– Low core loss and good stability
– Wide range of sizes available (EI28-300 and EI 80-300)
– No mould charge for standard sizes
– Custom moulds available according to customer drawings
– Premium quality and prompt delivery
– Multiple payment and shipping options
Cons:
– Minimum order quantity of 500KG
– Specific dimensional and burr tolerances may require precise handling
– Limited to specific material brands and thicknesses
Comparison Table
| Company | Product Details | Pros | Cons | Website |
|---|---|---|---|---|
| EE Transformer Laminations in China | EI transformer laminations are constructed from stacks of thin, electrically insulated sheets of electrical steel, typically grain-oriented. These lam… | – Easy and economical to manufacture – Lower coupling capacitance between the primary and secondary, blocking high freq… – Better performance in low… | – Small imperfections and burrs in the laminations can create an effective air gap… – Loose laminations can vibrate at the fundamental frequency, pr… | lammotor.com |
| Transformer Laminations in China | Lammotor specializes in producing various types of transformer laminations, including E-type, EI, UI, and EE laminations. These laminations are made f… | – Superior energy efficiency and durability – High-performance transformer cores with minimal energy loss – Customizable to meet specific requirements… | – Susceptibility to corrosion and brittleness in silicon steel laminations – Higher energy losses in silicon steel compared to amorphous metal | lammotor.com |
| china transformer core laminations manufacturer – Gaotune | Gaotune offers various types of transformer core laminations, including amorphous C-core, Hiperco 50 C-Core, and other specialized cores. The amorphou… | – High magnetic permeability, making them ideal for high-precision transformer app… – Low core loss and high energy efficiency, even in high magneti… | – More expensive than laminated cores due to the complex manufacturing process. – More susceptible to damage from internal mechanical stresses, requir… | www.gaotune.com |
| Transformer Laminations In China | Lamnow specializes in customized electrical steel laminations for transformers, including C, EI, and UI types. These laminations are precision-enginee… | – Optimizes energy transfer and minimizes losses for reliable electrical performan… – Enhances overall transformer efficiency by reducing core loss… | – Laminated cores have a low saturation flux density, limiting their ability to op… – Eddy currents generated can increase energy losses, leading to… | lamnow.com |
| Transformer Core – Silicon steel core | Silicon steel core transformers are constructed using thin laminated sheets of silicon steel, which is a type of electrical steel. This material is ch… | – High durability and resistance to mechanical stress, making them suitable for ap… – Cost-effective with a lower initial cost, which is attractive… | – Higher energy losses in the form of hysteresis and eddy currents, especially in… – Generate more heat during operation, which can increase cooling… | www.siliconsteelcore.com |
| Current transformers core laminations – Silicon steel core | Silicon steel laminations are made from low-carbon steel with the addition of silicon, typically between 3% to 5%. They are often cold-rolled and grai… | – Reduces eddy current losses and hysteresis losses, improving efficiency in elect… – Increases the electrical resistance of the component, allowing… | – The presence of silicon makes the steel brittle and harder to stamp, affecting t… – May require additional processing depending on the type and in… | www.siliconsteelcore.com |
| Transformer Laminations in China | Transformer laminations are made from silicon steel strips, available in standard and non-standard sizes. Standard sizes range from EI 28 to EI 240, a… | – Cost-effective, durable, and able to handle high voltages – Low noise production compared to other transformer core types – Better mechanical stabil… | – Low saturation flux density, limiting operation under high magnetic loads – Increased energy losses due to eddy currents – Higher manufacturing and… | www.tradeindia.com |
| EE Transformer Lamination Core In China | Transformer lamination cores are made from stacks of thin, electrically insulated sheets of electrical steel, typically ranging from 0.10 to 1.00 mill… | – Reduced eddy currents: The insulating layers between laminations act as barriers… – Enhanced efficiency: By minimizing eddy current losses, lamina… | – Low saturation flux density: Laminated cores have a low saturation flux density,… – Energy losses: The eddy currents generated increase the transf… | lamnow.com |
| Silicon Steel Lamination Transformer Core Ei Lamination | Silicon steel lamination transformer cores are made from grain-oriented electrical steel with a silicon content up to 3.2%. They are cold-rolled and a… | – Low loss and high efficiency due to excellent magnetic permeability and low hyst… – High temperature stability, maintaining good magnetic properti… | – Limited to non-rotating applications due to preferred crystallographic orientati… – Requires precise manufacturing processes to maintain optimal m… | hu.galvanized-sheets.com |
| China EI core lamination,Silicon steel core,Transformer core … | The products are Silicon Steel Laminations (EI core laminations) used in various electrical applications such as power transformers, ballast resistors… | – Low core loss and good stability – Wide range of sizes available (EI28-300 and EI 80-300) – No mould charge for standard sizes – Custom moulds avail… | – Minimum order quantity of 500KG – Specific dimensional and burr tolerances may require precise handling – Limited to specific material brands and th… | eilamination.store.bossgoo.com |
Frequently Asked Questions (FAQs)
Frequently Asked Questions About Lamination of Transformer Factories in China
What types of transformer laminations are commonly produced in Chinese factories?
Chinese transformer factories typically produce a variety of lamination types, including C, EI, and UI types. These laminations are precision-engineered to enhance energy efficiency and are used in different applications such as power distribution, instrumentation, and household appliances.
How do Chinese factories manufacture transformer laminations?
Manufacturing involves advanced stamping processes like progressive stamping, large blank compound stamping, and rotary notch stamping. For mass production, high-speed stamping machines are used, while laser cutting is preferred for prototyping and custom designs. This ensures high accuracy and efficiency in producing the laminations.
What materials are used for transformer laminations in Chinese factories?
The materials used include Non-Grain Oriented (NGO), Grain Oriented (GO), Cold Rolled Motor Lamination (CRML) steel, and Amorphous Metal Alloys. These materials are carefully selected to optimize energy efficiency and minimize losses within the transformer core.
Why is the lamination process important for transformer efficiency?
The lamination process is crucial because it reduces eddy currents generated by changes in the magnetic field. By dividing the core material into thin slices and stacking them, the process minimizes energy losses, improves efficiency, and reduces heat generation, ensuring the transformer operates effectively and remains cool during long periods.
How do Chinese factories ensure the quality of their transformer laminations?
Quality control is a top priority. Factories implement comprehensive quality control systems that include incoming material inspection, in-process monitoring, and thorough testing of the laminations. This ensures that the final products meet the required specifications and standards, enhancing customer satisfaction and reliability.